Also known as Clark's Fork Basin, Pat O'Hara Creek mouth
Where: Park County, Wyoming (44.9° N, 109.2° W: paleocoordinates 49.7° N, 91.9° W)
• coordinate based on nearby landmark
When: Willwood Formation, Wasatchian (55.8 - 50.3 Ma)
• Prev. ID'd as Wasatch Fm, subsequently named as Willwood Formation in the early 1940s.
Environment/lithology: terrestrial; lithology not reported
Size class: mesofossils
Collected by American Museum in 1912
Primary reference: C. W. Gilmore. 1928. Fossil lizards of North America. Memoirs of the National Academy of Sciences 22(3):1-201 [J. Head/J. Head/M. Carrano]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 179977: authorized by Paul Barrett, entered by Terri Cleary on 06.07.2016
Creative Commons license: CC BY (attribution)
Taxonomic list
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Melanosaurus maximus Gilmore 1928 squamates AMNH 1616, fragmentary part of skull and lower jaw assoc. with considerable block of dermal scutes
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cf. Saniwa ensidens Leidy 1870 squamates AMNH 5169, articulated series of 11 dorsal vertebrae, 2 sacrals articulated with 10 anterior caudals; a second articulated series of 9 median caudals and 17 scattered caudals. Numerous limb and foot bones with most articular extremities lacking.
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